Period
to 21 October 2018

The following table provides summary statistics for contract job vacancies advertised in Essex with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 21 October 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Test-Driven Development (TDD)
6 months to
21 Oct 2018
Same period 2017 Same period 2016
Rank 6 2 29
Rank change year-on-year -4 +27 -4
Contract jobs citing TDD 186 263 53
As % of all contract IT jobs advertised in Essex 17.92% 32.11% 6.22%
As % of the Processes & Methodologies category 19.98% 35.69% 7.15%
Number of daily rates quoted 154 192 36
Essex median daily rate £525 £517 £475
Median daily rate % change year-on-year +1.55% +8.84% +18.75%
10th Percentile £425 £388 £220
90th Percentile £600 £617 £566
East of England median daily rate £525 £500 £450
% change year-on-year +5.00% +11.11% +9.42%
Number of hourly rates quoted 4 27 4
Essex median hourly rate £35.29 £62.50 £31.45
Median hourly rate % change year-on-year -43.54% +98.73% -14.24%
10th Percentile £31.52 £37.00 £27.68
90th Percentile £53.98 £63.75 £34.77
East of England median hourly rate £37.50 £62.50 £36.00
% change year-on-year -40.00% +73.61% -2.86%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Essex with a requirement for process or methodology skills.

All Process and Methodology Skills
Essex
Contract vacancies with a requirement for process or methodology skills 931 737 741
As % of all contract IT jobs advertised in Essex 89.69% 89.99% 86.97%
Number of daily rates quoted 584 480 428
Essex median daily rate £500 £489 £350
Median daily rate % change year-on-year +2.30% +39.64% -12.50%
10th Percentile £298 £300 £220
90th Percentile £600 £600 £530
East of England median daily rate £438 £425 £400
% change year-on-year +2.94% +6.25% +3.23%
Number of hourly rates quoted 36 68 158
Essex median hourly rate £16.50 £32.50 £25.00
Median hourly rate % change year-on-year -49.23% +30.00% -24.24%
10th Percentile £12.55 £13.04 £15.75
90th Percentile £48.13 £63.75 £42.89
East of England median hourly rate £17.50 £30.00 £27.25
% change year-on-year -41.67% +10.09% +12.80%

TDD
Job Vacancy Trend in Essex

Job postings citing TDD as a percentage of all IT jobs advertised in Essex.

Job vacancy trend for TDD in Essex

TDD
Contractor Daily Rate Trend in Essex

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing TDD in Essex.

Contractor daily rate trend for TDD in Essex

TDD
Contractor Daily Rate Histogram in Essex

The daily rate distribution of IT jobs citing TDD in Essex over the 6 months to 21 October 2018.

Contractor daily rate histogram for TDD in Essex

TDD
Contractor Hourly Rate Trend in Essex

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing TDD in Essex.

Contractor hourly rate trend for TDD in Essex

TDD
Contractor Hourly Rate Histogram in Essex

The hourly rate distribution of IT jobs citing TDD in Essex over the 6 months to 21 October 2018.

Contractor hourly rate histogram for TDD in Essex

TDD
Contract Job Locations in Essex

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing TDD within the Essex region over the 6 months to 21 October 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Southend-on-Sea -19 36 £523 +0.48% 2
Basildon +3 10 £475 - 2
Brentwood -4 6 £475 +48.44% 2
Harlow - 3 £475 -
Colchester 0 1 £700 +64.71% 1
TDD
East of England

For the 6 months to 21 October 2018, IT contractor jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Essex region with a requirement for TDD.

1 156 (83.87%) Agile Software Development
2 111 (59.68%) Java
3 106 (56.99%) SOAP
4 104 (55.91%) Web Services
4 104 (55.91%) Marketing
5 101 (54.30%) SOA
5 101 (54.30%) Business Intelligence
6 100 (53.76%) Scrum
6 100 (53.76%) Greenfield Project
7 99 (53.23%) Manufacturing
8 98 (52.69%) Finance
9 97 (52.15%) Telecoms
9 97 (52.15%) Programme Management
10 96 (51.61%) Electronics
10 96 (51.61%) SAP
10 96 (51.61%) Digital Marketing
11 87 (46.77%) RESTful
12 85 (45.70%) XML
13 81 (43.55%) Oracle
14 68 (36.56%) Middleware
15 63 (33.87%) WSO2
16 62 (33.33%) JSON
17 59 (31.72%) Oracle SOA Suite
18 58 (31.18%) Mule
18 58 (31.18%) Apache Camel
19 57 (30.65%) Oracle Service Bus
20 55 (29.57%) Kanban
21 54 (29.03%) Java 8
22 53 (28.49%) Maven
23 52 (27.96%) Test Automation

TDD
Co-occurring IT Skills in Essex by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 59 (31.72%) Oracle SOA Suite
2 58 (31.18%) Mule
3 57 (30.65%) Oracle Service Bus
4 24 (12.90%) Confluence
5 8 (4.30%) Adobe Experience Manager
5 8 (4.30%) Apache
5 8 (4.30%) Cloud Foundry
5 8 (4.30%) WebLogic
5 8 (4.30%) WebSphere
6 6 (3.23%) JBoss
7 1 (0.54%) CMS
7 1 (0.54%) Elasticsearch
7 1 (0.54%) Tomcat
Applications
1 1 (0.54%) Microsoft Project
Cloud Services
1 18 (9.68%) Amazon AWS
2 5 (2.69%) GitHub
3 1 (0.54%) Google Analytics
Communications & Networking
1 17 (9.14%) HTTP
2 16 (8.60%) SSL
2 16 (8.60%) TCP/IP
3 7 (3.76%) Internet
4 1 (0.54%) SMS
Database & Business Intelligence
1 12 (6.45%) MySQL
2 11 (5.91%) Relational Database
3 8 (4.30%) Pentaho
4 7 (3.76%) NoSQL
5 5 (2.69%) BusinessObjects
5 5 (2.69%) Impala
6 4 (2.15%) Geospatial Data
6 4 (2.15%) GIS
7 3 (1.61%) SQL Server
8 2 (1.08%) MariaDB
8 2 (1.08%) Oracle Database
9 1 (0.54%) Big Data
9 1 (0.54%) Data Warehouse
9 1 (0.54%) Hadoop
9 1 (0.54%) HBase
9 1 (0.54%) JasperReports
9 1 (0.54%) MongoDB
9 1 (0.54%) RDBMS
9 1 (0.54%) Triplestore
Development Applications
1 53 (28.49%) Maven
2 41 (22.04%) SoapUI
3 35 (18.82%) Jenkins
4 31 (16.67%) Git (software)
5 30 (16.13%) JIRA
6 26 (13.98%) Selenium
7 25 (13.44%) Subversion
8 21 (11.29%) JUnit
9 18 (9.68%) JMeter
10 14 (7.53%) Cucumber
11 12 (6.45%) Gradle
12 10 (5.38%) Eclipse
13 8 (4.30%) Ant
13 8 (4.30%) LoadRunner
13 8 (4.30%) Zephyr
14 7 (3.76%) AccuRev
15 6 (3.23%) CA Gen
15 6 (3.23%) Checkstyle
15 6 (3.23%) JIRA Agile
16 5 (2.69%) Calabash
General
1 104 (55.91%) Marketing
2 99 (53.23%) Manufacturing
3 98 (52.69%) Finance
4 97 (52.15%) Telecoms
5 96 (51.61%) Electronics
6 5 (2.69%) Automotive
7 3 (1.61%) Legal
8 1 (0.54%) Banking
8 1 (0.54%) Retail
Job Titles
1 96 (51.61%) Developer
2 61 (32.80%) Java Developer
3 57 (30.65%) Senior Developer
4 41 (22.04%) Integration Developer
5 31 (16.67%) Senior Java Developer
6 26 (13.98%) SOA Developer
7 24 (12.90%) Tester
8 21 (11.29%) Agile Developer
9 18 (9.68%) Senior Agile Developer
10 17 (9.14%) Automation Tester
11 16 (8.60%) Scrum Master
12 15 (8.06%) Architect
13 14 (7.53%) Lead Developer
13 14 (7.53%) Lead Java Developer
14 13 (6.99%) Analyst
15 12 (6.45%) Infrastructure Architect
16 11 (5.91%) Business Analyst
16 11 (5.91%) Technical Business Analyst
17 8 (4.30%) Java Automation Tester
18 7 (3.76%) Product Owner
Libraries, Frameworks & Software Standards
1 106 (56.99%) SOAP
2 104 (55.91%) Web Services
3 87 (46.77%) RESTful
4 85 (45.70%) XML
5 68 (36.56%) Middleware
6 62 (33.33%) JSON
7 58 (31.18%) Apache Camel
8 35 (18.82%) Swagger
8 35 (18.82%) WireMock
8 35 (18.82%) XSLT
9 29 (15.59%) Spring
10 27 (14.52%) REST
11 20 (10.75%) Spring Boot
12 18 (9.68%) HTML
13 15 (8.06%) CSS
14 12 (6.45%) SAML
15 11 (5.91%) J2EE
16 10 (5.38%) Ajax
16 10 (5.38%) JPA
17 9 (4.84%) Spring MVC
Miscellaneous
1 100 (53.76%) Greenfield Project
2 14 (7.53%) Self-Motivation
3 9 (4.84%) Clustering
4 8 (4.30%) Client/Server
5 7 (3.76%) Analytical Skills
6 6 (3.23%) Hybrid Cloud
7 4 (2.15%) Animation
7 4 (2.15%) Replication
7 4 (2.15%) Virtual Team
8 3 (1.61%) Enterprise Software
8 3 (1.61%) Mobile App
9 1 (0.54%) Data Structures
9 1 (0.54%) Foreign Exchange (FX)
9 1 (0.54%) Mainframe
9 1 (0.54%) Tandem
9 1 (0.54%) Web 2.0
Operating Systems
1 34 (18.28%) Unix
2 33 (17.74%) Linux
3 8 (4.30%) Windows
4 7 (3.76%) Android
4 7 (3.76%) Solaris
5 5 (2.69%) Apple iOS
6 2 (1.08%) CentOS
6 2 (1.08%) Mac OS X
6 2 (1.08%) Red Hat Enterprise Linux
Processes & Methodologies
1 156 (83.87%) Agile Software Development
2 101 (54.30%) Business Intelligence
2 101 (54.30%) SOA
3 100 (53.76%) Scrum
4 97 (52.15%) Programme Management
5 96 (51.61%) Digital Marketing
6 55 (29.57%) Kanban
7 52 (27.96%) Test Automation
8 42 (22.58%) User Stories
9 37 (19.89%) BDD
10 35 (18.82%) Continuous Integration
11 24 (12.90%) Microservices
12 23 (12.37%) DevOps
12 23 (12.37%) Scaled Agile Framework
13 22 (11.83%) API Testing
14 21 (11.29%) Coaching
14 21 (11.29%) Deployment Automation
14 21 (11.29%) Open Source
15 20 (10.75%) Software Engineering
16 19 (10.22%) MVC
Programming Languages
1 111 (59.68%) Java
2 54 (29.03%) Java 8
3 35 (18.82%) XPath
4 31 (16.67%) SQL
5 19 (10.22%) JavaScript
6 17 (9.14%) Groovy
7 11 (5.91%) Perl
8 10 (5.38%) Java 9
9 9 (4.84%) PL/SQL
10 8 (4.30%) C
11 6 (3.23%) Shell Script
12 5 (2.69%) Apple Swift
12 5 (2.69%) Objective-C
13 2 (1.08%) C#
14 1 (0.54%) Kotlin
14 1 (0.54%) Ruby
14 1 (0.54%) Scala
14 1 (0.54%) T-SQL
14 1 (0.54%) VB.NET
Qualifications
1 13 (6.99%) Security Cleared
2 11 (5.91%) ISEB
2 11 (5.91%) ISTQB
2 11 (5.91%) SC Cleared
3 2 (1.08%) BPSS Clearance
4 1 (0.54%) DBS Check
4 1 (0.54%) ISEB Practitioner
4 1 (0.54%) ISTQB Foundation Certification
4 1 (0.54%) OCPJP
4 1 (0.54%) Sun Certification
Quality Assurance & Compliance
1 15 (8.06%) QA
2 6 (3.23%) Data Quality
System Software
1 10 (5.38%) Docker
2 5 (2.69%) Active Directory
2 5 (2.69%) Virtual Machines
Systems Management
1 21 (11.29%) Ansible
2 5 (2.69%) Opscode Chef
2 5 (2.69%) Puppet
2 5 (2.69%) Single Sign-On
3 2 (1.08%) HP Quality Center
4 1 (0.54%) HP ALM
4 1 (0.54%) Kibana
4 1 (0.54%) logstash
4 1 (0.54%) Terraform
Vendors
1 96 (51.61%) SAP
2 81 (43.55%) Oracle
3 63 (33.87%) WSO2
4 11 (5.91%) Adobe
5 9 (4.84%) Informatica
6 8 (4.30%) Talend
7 7 (3.76%) IBM
8 6 (3.23%) BEA
8 6 (3.23%) Pega
8 6 (3.23%) webMethods
9 4 (2.15%) Google
10 2 (1.08%) Red Hat
11 1 (0.54%) Atlassian
11 1 (0.54%) Cloudera
11 1 (0.54%) Hortonworks
11 1 (0.54%) HP
11 1 (0.54%) MapR
11 1 (0.54%) Microsoft
11 1 (0.54%) Omniture
11 1 (0.54%) Sun